CHINESE JOURNAL OF ONCOLOGY, Volume 26, Issue 9,2004, Pages 547-550, doi:10.3760/j.issn:0253-3766.2004.09.011
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CHINESE JOURNAL OF ONCOLOGY, Volume 26, Issue 9,2004, Pages 539-542, doi:10.3760/j.issn:0253-3766.2004.09.009